User Guide

4 - Xserve RAID Troubleshooting
Diagnostic Tools
Host Adapter Card Status Lights
The host adapter card’s status lights are shown in the figure and table below.
Table 3: Power Supply Status Lights
Power Supply Conditions Green LED Yellow LED Red LED
No AC power to either power supply Off Off Off
Power supply failure or no AC power to
this power supply
Off Off On
AC power present; standby ouputs on Blinking Off Off
Power supply DC outputs on and OK On Off Off
Current limit On Off Blinking
Predictive failure On Blinking/on Off
Table 4: Host Adapter Card Status Lights
LED Color/Status Description
No light Link established
Blinking green Activity on the channel
Yellow No link or there is an error condition
Status Lights
SFP Ports